Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
DRIVING APPARATUS FOR ELECTROMOBILE
Document Type and Number:
Japanese Patent JPH03230702
Kind Code:
A
Abstract:

PURPOSE: To eliminate a constant-voltage circuit and suppress noise by a method wherein a rectifier circuit which charges an auxiliary battery, command control circuit which determines a target slip ratio and a coordinate transformation circuit are provided and the auxiliary voltage is regulated to be a target value while the torque of a motor is kept at a certain value.

CONSTITUTION: A rectifier circuit 28 is directly connected to an auxiliary battery 32 to charge the auxiliary battery 32. A voltage sensor 35 detects the auxiliary voltage outputted by the use of the rectifier circuit 28. A command control circuit 36 determines a target slip ratio S* which gives the target torque of a motor 14. A coordinate transformation circuit 38 determines a primary voltage command value for a motor power converter 12 in accordance with the primary voltage target value V and the target slip ratio S* and regulates the slip ratio to be the target value while the torque is kept at the target value.


Inventors:
Shiyamoto, Sumikazu
Application Number:
JP1990000026665
Publication Date:
October 14, 1991
Filing Date:
February 05, 1990
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOYOTA MOTOR CORP
International Classes:
H02J7/00; B60L1/00; B60L9/18; B60L11/18; H02K17/02; (IPC1-7): B60L9/18; B60L11/18; H02J7/00